Liquid stabilizer for chlorine-containing resin, and method for manufacturing same

Abstract

Provided is a liquid stabilizer, which can improve releasability without impairing transparency. A liquid stabilizer for a chlorine-containing resin of the present invention includes: an oxidized polyethylene wax having an acid value of 5 mgKOH/g or more; a dispersion medium; and at least one kind selected from the group consisting of a zinc salt, an alkaline earth metal salt, and an organotin compound. The liquid stabilizer of the present invention is a dispersion, and a dispersoid including the oxidized polyethylene wax has a median diameter (D 50 ) of from 1 μm to 50 μm.

What is claimed is: 
     
         1 . A liquid stabilizer for a chlorine-containing resin, comprising:
 an oxidized polyethylene wax having an acid value of 5 mgKOH/g or more;   a dispersion medium; and   at least one kind selected from the group consisting of a zinc salt, an alkaline earth metal salt, and an organotin compound,   wherein the liquid stabilizer is a dispersion, and   wherein a dispersoid including the oxidized polyethylene wax has a median diameter (D 50 ) of from 1 μm to 50 μm.   
     
     
         2 . The liquid stabilizer according to  claim 1 , wherein a content of the oxidized polyethylene wax is from 0.1 wt % to 15 wt % with respect to a total amount of the liquid stabilizer. 
     
     
         3 . The liquid stabilizer according to  claim 1 , wherein the oxidized polyethylene wax has a density of 0.85 g/cm 3  or more. 
     
     
         4 . The liquid stabilizer according to  claim 2 , wherein the oxidized polyethylene wax has a density of 0.85 g/cm 3  or more. 
     
     
         5 . The liquid stabilizer according to  claim 1 , further comprising a dispersant. 
     
     
         6 . The liquid stabilizer according to  claim 2 , further comprising a dispersant. 
     
     
         7 . The liquid stabilizer according to  claim 3 , further comprising a dispersant. 
     
     
         8 . The liquid stabilizer according to  claim 4 , further comprising a dispersant. 
     
     
         9 . A manufacturing method for a liquid stabilizer for a chlorine-containing resin composition, comprising:
 mixing at least a dispersion medium and an oxidized polyethylene wax with each other at a temperature equal to or higher than a dropping point of the oxidized polyethylene wax; and   cooling the mixture while stirring the mixture.   
     
     
         10 . The manufacturing method according to  claim 9 , wherein the cooling the mixture while stirring the mixture is performed until a temperature of the mixture becomes 90° C. or less. 
     
     
         11 . The manufacturing method according to  claim 9 , wherein the stirring is performed using a high-speed stirring disperser or a dispersion pulverizer configured to use dispersion media. 
     
     
         12 . The manufacturing method according to  claim 10 , wherein the stirring is performed using a high-speed stirring disperser or a dispersion pulverizer configured to use dispersion media. 
     
     
         13 . The manufacturing method according to  claims 9 , further comprising, before the stirring, adding a dispersant to the mixture. 
     
     
         14 . The manufacturing method according to  claims 10 , further comprising, before the stirring, adding a dispersant to the mixture. 
     
     
         15 . The manufacturing method according to  claims 11 , further comprising, before the stirring, adding a dispersant to the mixture. 
     
     
         16 . The manufacturing method according to  claims 12 , further comprising, before the stirring, adding a dispersant to the mixture.